You are composing an e-mail. You want to add a signature to the e-mail. Subsequently, you want to
add another signature to the e-mail. However, you are not able to add multiple signatures.
Which of the following is the most likely cause of the issue?
A.
The e-mail is marked as read.
B.
The e-mail is a reply of a message.
C.
The e-mail is an outgoing message.
D.
Only one signature can be added to the e-mail.